scholarly journals Effect of yeast cell product supplementation on broiler cecal microflora species and immune responses during an experimental coccidial infection

2013 ◽  
Vol 92 (5) ◽  
pp. 1195-1201 ◽  
Author(s):  
Revathi Shanmugasundaram ◽  
Mamduh Sifri ◽  
Ramesh K. Selvaraj
Keyword(s):  
Immune Responses ◽  
Yeast Cell ◽  
Cell Product ◽  
Coccidial Infection ◽  
Cecal Microflora

scholarly journals Effect of whole yeast cell product supplementation (CitriStim®) on immune responses and cecal microflora species in pullet and layer chickens during an experimental coccidial challenge

2017 ◽  
Vol 96 (7) ◽  
pp. 2049-2056 ◽  
Author(s):  
Ashley D. Markazi ◽  
Victor Perez ◽  
Mamduh Sifri ◽  
Revathi Shanmugasundaram ◽  
Ramesh K. Selvaraj
Keyword(s):  
Immune Responses ◽  
Yeast Cell ◽  
Cell Product ◽  
Layer Chickens ◽  
Cecal Microflora

scholarly journals Effects of supplementation with a Pichia guilliermondii yeast cell product or essential oils on performance and health of dairy calves during an experimental coccidial infection

2021 ◽  
Vol 37 (5) ◽  
pp. 519-524
Author(s):  
Manuel G. Pastén ◽  
Natividad C. Montenegro ◽  
Lauro C. Trejo ◽  
Susana V. Flores ◽  
Lawrence D. Bunting ◽  
...  
Keyword(s):  
Essential Oils ◽  
Yeast Cell ◽  
Dairy Calves ◽  
Pichia Guilliermondii ◽  
Cell Product ◽  
Coccidial Infection

scholarly journals Change of Serum Metabolome and Cecal Microflora in Broiler Chickens Supplemented With Grape Seed Extracts

2020 ◽  
Vol 11 ◽  
Author(s):  
Guangtian Cao ◽  
Xinfu Zeng ◽  
Jinsong Liu ◽  
Feifei Yan ◽  
Zhentian Xiang ◽  
...  
Keyword(s):  
Immune Responses ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Early Stage ◽  
Short Chain Fatty Acids ◽  
Grape Seed ◽  
Serum Metabolites ◽  
Cecal Microflora ◽  
Grape Seed Extracts ◽  
Seed Extracts

Grape seed is rich in vitamin E, flavonoids, and proanthocyanidins and has the potential to be used as an antibiotic substitute in broilers. We investigated the effects of grape seed proanthocyanidin extract (GSPE) on growth performance, immune responses, cecal microflora, and serum metabolism in early stage broilers. Data indicated that GSPE improved broiler growth performance by strengthening antioxidant capacity, enhancing immune responses, and increasing cecal short chain fatty acids. 16S rRNA sequencing indicated that GSPE changed the predominant cecal microflora and induced the metabolism of amino acids, lipids, and carbohydrates. An UPLC-Q-TOF/MS-based metabolomics analysis identified 23 serum metabolites (mainly related to lipid, amino acid, and alkaloid) were extremely changed by GSPE treatment. The correlations between the changes of cecal microflora and serum metabolites in birds fed with GSPE were analyzed. Hence, GSPE potentially provides active ingredients that may be used as antibiotic substitute and reduces environmental pollution by grape by-products.

scholarly journals PSXIV-42 Late-Breaking: Effects of yeast cell wall product on growth performance, immune responses, and gene expression of tight junction proteins of weaned pigs

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 333-334
Author(s):  
Hyunjin Kyoung ◽  
Myungwoo Cho ◽  
Hanbae Lee ◽  
Sangwoo Park ◽  
Joowon Kang ◽  
...  
Keyword(s):  
Gene Expression ◽  
Cell Wall ◽  
Immune Responses ◽  
Tight Junction ◽  
Yeast Cell ◽  
Growth Performance ◽  
Experimental Period ◽  
Yeast Cell Wall ◽  
Weaned Pigs ◽  
Tnf Α

Abstract The study was conducted to investigate effects of yeast cell wall product on growth performance, immune responses, and gene expression of tight junction proteins of weaned pigs. A total of 112 weaned pigs (7.98 ± 0.43 kg BW) were randomly assigned to 2 dietary treatments (8 pigs/pen; 7 replicates/treatments) for 4 weeks in a randomized complete block design (block = BW). Dietary treatments were 1) a commercial basal nursery diet (CON) and 2) CON + 0.05% yeast cell wall product (YCW, EasyBio Inc., Seoul, Korea). Blood was collected from one randomly selected pig per pen on d 0, 7, and 14 after weaning. The randomly selected one pig per replicate was euthanized to collect ileum tissue samples at the end of the experimental period. Measurements were growth performance, number of white blood cells (WBC) by an automated hematology analyzer calibrated for porcine blood, cortisol, tumor necrosis factor-α (TNF-α), transforming growth factor-β1, interleukin-1β (IL-1β), and interleukin-6 (IL-6) by the ELISA, and gene expression of tight junction in ileum tissues. Data were analyzed using the PROC GLM procedure of SAS. The statistical model for every measurement included dietary effect and BW as a covariate. Pigs fed YCW had higher (P < 0.10) ADG than those fed CON during overall experimental period. Pigs fed YCW had lower WBC on d 14 (P < 0.10), TNF-α on d 7 (P < 0.10), and decreased IL-1β on d 14 (P < 0.05) than those fed CON. In addition, The YCW increased (P < 0.05) expression of Claudin family, Occludin, Muc1, INF-α, and IL-6, but decreased (P < 0.05) expression of TNF-α genes in the ileum tissues compared with CON. In conclusion, addition of yeast cell wall product in the nursery diet improved growth performance and gut health and modified immune responses of weaned pigs.

scholarly journals Avian gut-associated lymphoid tissues and intestinal immune responses to Eimeria parasites.

1996 ◽  
Vol 9 (3) ◽  
pp. 349-360 ◽  
Author(s):  
H S Lillehoj ◽  
J M Trout
Keyword(s):  
Immune System ◽  
Immune Responses ◽  
Minor Role ◽  
Lymphoid Tissues ◽  
Cell Mediated Immunity ◽  
Limited Information ◽  
Effector Cells ◽  
Intestinal Immune System ◽  
Eimeria Spp ◽  
Coccidial Infection

Coccidiosis, an intestinal infection caused by intracellular protozoan parasites belonging to several different species of Eimeria, seriously impairs the growth and feed utilization of livestock and poultry. Host immune responses to coccidial infection are complex. Animals infected with Eimeria spp. produce parasite-specific antibodies in both the circulation and mucosal secretions. However, it appears that antibody-mediated responses play a minor role in protection against coccidiosis. Furthermore, there is increasing evidence that cell-mediated immunity plays a major role in resistance to infection. T lymphocytes appear to respond to coccidial infection through both cytokine production and a direct cytotoxic attack on infected cells. The exact mechanisms by which T cells eliminate the parasites, however, remain unclear. Although limited information is available on the intestinal immune system of chickens, gut lymphoid tissues have evolved specialized features that reflect their role as the first line of defense at mucosal surfaces, including both immunoregulatory cells and effector cells. This review summarizes our current understanding of the avian intestinal immune system and mucosal immune responses to Eimeria spp., providing an overview of the complex cellular and molecular events involved in intestinal immune responses to enteric pathogens.

Sign in / Sign up

Export Citation Format

Share Document